The Acer Chromebook C720 may be an older device, but it remains a favorite among tech enthusiasts thanks to its solid build quality, Intel processor, and surprising upgrade potential. While ChromeOS is lightweight and efficient, some users want the flexibility and compatibility of a full Windows environment. Installing Windows 10 on the C720 can breathe new life into the device, transforming it into a compact Windows laptop capable of running traditional desktop applications.
TL;DR: Installing Windows 10 on an Acer Chromebook C720 requires removing firmware write protection, replacing the stock BIOS with a custom UEFI firmware, and creating a bootable Windows 10 USB installer. You’ll also need specific drivers for Wi-Fi, audio, and touchpad functionality. While the process takes time and care, the result is a fully functional Windows laptop built from affordable hardware. Proper preparation and careful firmware flashing are the keys to success.
Why Install Windows 10 on the Acer C720?
The Acer C720 features an Intel Celeron processor (and in some models an Intel Core i3), making it one of the few Chromebooks with full x86 compatibility. That makes it suitable for Windows installation without emulation. Installing Windows 10 gives you:
- Access to full desktop applications
- Better compatibility with printers and peripherals
- Improved productivity software options
- Offline desktop gaming potential
- Greater system customization
That said, this process is not officially supported by Acer or Google. You will void warranties and potentially risk damaging your system if you skip steps. Proceed carefully.
What You’ll Need Before Starting
Preparation is everything. Before you begin, gather the following:
- 8GB or larger USB flash drive
- Small Phillips screwdriver
- Plastic pry tool
- Another computer to prepare installation media
- Windows 10 ISO file
- Replacement UEFI firmware (MrChromebox firmware)
- USB keyboard and mouse (recommended)
- Patience and about 2–3 hours
Tool Comparison Chart
| Tool | Purpose | Required? | Notes |
|---|---|---|---|
| USB Flash Drive (8GB+) | Create Windows installer | Yes | Must be formatted properly |
| Phillips Screwdriver | Remove bottom panel | Yes | Small precision size |
| Plastic Pry Tool | Open chassis safely | Recommended | Prevents scratching |
| External Mouse and Keyboard | Assist during Windows setup | Recommended | Touchpad may not work at first |
Step 1: Backup and Enable Developer Mode
First, back up anything important from your Chromebook. Switching to Developer Mode will erase all local data.
To enable Developer Mode:
- Turn off your Chromebook.
- Press ESC + Refresh + Power.
- At the recovery screen, press Ctrl + D.
- Confirm by pressing Enter.
The system will reboot and transition into Developer Mode. This may take several minutes.
Step 2: Remove the Write-Protect Screw
The Acer C720 contains a firmware write-protection screw that must be removed before installing custom firmware.
This step requires opening the device.
- Turn off and unplug the Chromebook.
- Remove all screws from the bottom panel.
- Carefully pry the back cover off.
- Locate the firmware write-protect screw on the motherboard.
- Remove it and set it aside.
This screw typically has a distinct marking and connects circuit contacts beneath it. Removing it disables firmware write protection.
Step 3: Install Custom UEFI Firmware
By default, Chromebooks use Google’s custom firmware. Windows requires a standard UEFI firmware. The most commonly used solution is MrChromebox’s custom firmware.
To install it:
- Boot into ChromeOS.
- Press Ctrl + Alt + T to open Crosh.
- Type shell and press Enter.
- Run the firmware utility script from MrChromebox.
- Select Install Full ROM UEFI Firmware.
Follow on-screen instructions carefully. Do not interrupt the flashing process. Once complete, your Chromebook will behave like a standard UEFI PC.
Step 4: Create Windows 10 Installation Media
On another computer:
- Download the Windows 10 ISO from Microsoft.
- Use a tool like Rufus to create a bootable USB.
- Format using GPT partition scheme for UEFI.
Make sure Secure Boot is not enabled when preparing installation media.
Step 5: Install Windows 10
Plug the USB drive into the Chromebook and power it on. You should see the UEFI boot menu.
- Select the USB drive.
- Begin Windows setup.
- Delete all existing partitions.
- Install Windows on unallocated space.
The installation typically takes 15–30 minutes depending on your C720 model. The device will reboot several times during setup.
Step 6: Install Drivers
After installation, some components may not work immediately. Common issues include:
- No Wi-Fi
- Limited touchpad functionality
- No audio
- Missing device drivers in Device Manager
You’ll need specific drivers for the C720 hardware. These can typically be found through community forums and compatibility guides.
Important drivers include:
- Intel HD Graphics Driver
- Realtek Audio Driver
- Atheros or Broadcom Wi-Fi Driver (depends on model)
- Touchpad driver
Once installed, restart your system. Windows Update may also detect and install additional components automatically.
Performance Expectations
Don’t expect flagship performance—but do expect practical usability.
The C720 typically runs Windows 10 surprisingly well with:
- 4GB RAM (upgradeable in some configurations)
- SSD storage (replaceable M.2 SATA drive)
- Lightweight productivity tasks
It handles:
- Web browsing
- Microsoft Office
- Video streaming
- Light coding environments
It may struggle with demanding software or modern gaming.
Common Issues and Troubleshooting
No Boot After Firmware Flash
Ensure the write-protect screw was removed before flashing. Re-flashing may be required.
No Wi-Fi Connectivity
Check your wireless card model physically if necessary. The C720 shipped with different modules.
Touchpad Not Responding
Use a USB mouse temporarily while you locate correct drivers.
Overheating or Fan Noise
Install Intel chipset drivers and power management tools.
Is It Worth It?
If you enjoy hands-on projects, absolutely. Converting an Acer C720 into a Windows 10 laptop is both educational and practical. You extend the lifespan of hardware that might otherwise sit unused, reduce electronic waste, and gain a compact Windows device.
However, if you need seamless reliability for business use and aren’t comfortable removing screws or flashing firmware, purchasing an inexpensive Windows laptop might be a safer choice.
Final Thoughts
The Acer Chromebook C720 has earned its reputation as one of the most mod-friendly Chromebooks ever produced. With its Intel architecture and accessible motherboard design, it offers a rare opportunity to fully replace ChromeOS with Windows 10.
Though the process involves firmware modification and careful driver installation, the reward is impressive: a lightweight, fully functional Windows laptop built from a once cloud-centric device.
Take your time, follow each step carefully, and you’ll transform this classic Chromebook into something entirely new.